EP2119536B1 - Outil électrique incorporant un appareil de réduction de vibration - Google Patents

Outil électrique incorporant un appareil de réduction de vibration Download PDF

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Publication number
EP2119536B1
EP2119536B1 EP09169221.0A EP09169221A EP2119536B1 EP 2119536 B1 EP2119536 B1 EP 2119536B1 EP 09169221 A EP09169221 A EP 09169221A EP 2119536 B1 EP2119536 B1 EP 2119536B1
Authority
EP
European Patent Office
Prior art keywords
gear
pair
power tool
vibration reduction
masses
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP09169221.0A
Other languages
German (de)
English (en)
Other versions
EP2119536A2 (fr
EP2119536A3 (fr
Inventor
Michael Stirm
Heinz-Werner Faatz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Black and Decker Inc
Original Assignee
Black and Decker Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB0306525A external-priority patent/GB2399615B/en
Priority claimed from GB0323885A external-priority patent/GB0323885D0/en
Application filed by Black and Decker Inc filed Critical Black and Decker Inc
Publication of EP2119536A2 publication Critical patent/EP2119536A2/fr
Publication of EP2119536A3 publication Critical patent/EP2119536A3/fr
Application granted granted Critical
Publication of EP2119536B1 publication Critical patent/EP2119536B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/24—Damping the reaction force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/22—Compensation of inertia forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/061—Swash-plate actuated impulse-driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/068—Crank-actuated impulse-driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0073—Arrangements for damping of the reaction force
    • B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
    • B25D2217/0084—Arrangements for damping of the reaction force by use of counterweights being fluid-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0073—Arrangements for damping of the reaction force
    • B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
    • B25D2217/0088—Arrangements for damping of the reaction force by use of counterweights being mechanically-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0073—Arrangements for damping of the reaction force
    • B25D2217/0076—Arrangements for damping of the reaction force by use of counterweights
    • B25D2217/0092—Arrangements for damping of the reaction force by use of counterweights being spring-mounted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/045—Cams used in percussive tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/185—Pressure equalising means between sealed chambers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/221—Sensors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/231—Sleeve details

Definitions

  • the present invention relates to a to a power tool according to the preamble of claim 1 comprising a vibration reduction apparatus.
  • the invention relates particularly, but not exclusively, to vibration reduction apparatus for powered hammers, and to hammers incorporating such apparatus.
  • Electrically driven hammers are known in which a driving member in the form of a flying mass is reciprocally driven in a piston, and impact of the flying mass against the end of the piston imparts a hammer action to a bit of the hammer.
  • a driving member in the form of a flying mass is reciprocally driven in a piston, and impact of the flying mass against the end of the piston imparts a hammer action to a bit of the hammer.
  • the prior art demolition hammer comprises an electric motor 2, a gear arrangement and a piston drive arrangement which are housed within a metal gear housing 5 surrounded by a plastic housing 4.
  • a rear handle housing incorporating a rear handle 6 and a trigger switch arrangement 8 is fitted to the rear of the housings 4, 5.
  • a cable (not shown) extends through a cable guide 10 and connects the motor to an external electricity supply. When the cable is connected to the electricity supply when the trigger switch arrangement 8 is depressed, the motor 2 is actuated to rotationally drive the armature of the motor.
  • a radial fan 14 is fitted at one end of the armature and a pinion is formed at the opposite end of the armature so that when the motor is actuated the armature rotatingly drives the fan 14 and the pinion.
  • the metal gear housing 5 is made from magnesium with steel inserts and rigidly supports the components housed within it.
  • the motor pinion rotatingly drives a first gear wheel of an intermediate gear arrangement which is rotatably mounted on a spindle, which spindle is mounted in an insert to the gear housing 5.
  • the intermediate gear has a second gear wheel which rotatingly drives a drive gear.
  • the drive gear is non-rotatably mounted on a drive spindle mounted within the gear housing 5.
  • a crank plate 30 is non-rotatably mounted at the end of the drive spindle remote from the drive gear, the crank plate being formed with an eccentric bore for housing an eccentric crank pin 32.
  • the crank pin 32 extends from the crank plate into a bore at the rearward end of a crank arm 34 so that the crank arm can pivot about the crank pin 32.
  • the opposite forward end of the crank arm 34 is formed with a bore through which extends a trunnion pin 36 so that the crank arm 34 can pivot about the trunnion pin 36.
  • the trunnion pin 36 is fitted to the rear of a piston 38 by fitting the ends of the trunnion pin 36 into receiving bores formed in a pair of opposing arms which extend to the rear of the piston 38.
  • the piston is reciprocally mounted in cylindrical hollow spindle 40 so that it can reciprocate within the hollow spindle.
  • An O-ring seal 42 is fitted in an annular recess formed in the periphery of the piston 38 so as to form an airtight seal between the piston 38 and the internal surface of the hollow spindle 40.
  • the armature pinion rotatingly drives the intermediate gear arrangement via the first gear wheel and the second gear wheel of the intermediate gear arrangement rotatingly drives the drive spindle via the drive gear.
  • the drive spindle rotatingly drives the crank plate 30 and the crank arm arrangement comprising the crank pin 32, the crank arm 34 and the trunnion pin 36 converts the rotational drive from the crank plate 30 to a reciprocating drive to the piston 38.
  • the piston 38 is reciprocatingly driven back and forth along the hollow spindle 40 when the motor is actuated by a user depressing the trigger switch 8.
  • the spindle 40 is mounted in magnesium housing 42 from the forward end until an annular rearward facing shoulder (not shown) on the exterior of the spindle butts up against a forward facing annular shoulder (not shown) formed from a set of ribs in the interior of the magnesium casing 42.
  • the ribs enable air in the chamber surrounding the spindle 40 to circulate freely in the region between ram 58 and beat piece 64.
  • An increased diameter portion on the exterior of the spindle fits closely within a reduced diameter portion on the interior of the magnesium casing 42. Rearwardly of the increased diameter portion and the reduced diameter portion an annular chamber is formed between the external surface of the spindle 40 and the internal surface of the magnesium casing 42. This chamber is open at its forward and rearward ends.
  • the chamber communicates via the spaces between the ribs in the magnesium casing with a volume of air between the ram 58 and the beat piece 64.
  • the chamber communicates via the spaces between the ribs 7 and the recess of the gear casing 5 with a volume of air in the gear casing 5.
  • the volume of air in the gear casing 5 communicates with the air outside of the hammer via a narrow channel 9 and a filter 11.
  • the air pressure within the hammer which changes due to changes in the temperature of the hammer, is thus equalised with the air pressure outside of the hammer.
  • the filter 11 also keeps the air within the hammer gear casing 5 relatively clean and dust free.
  • a ram 58 is located within the hollow spindle 40 forwardly of the piston 38 so that it can also reciprocate within the hollow spindle 40.
  • An O-ring seal 60 is located in a recess formed around the periphery of the ram 58 so as to form an airtight seal between the ram 58 and the spindle 40.
  • a closed air cushion is formed between the forward face of the piston 38 and the rearward face of the ram 58. Reciprocation of the piston 38 thus reciprocatingly drives the ram 58 via the closed air cushion.
  • Active vibration reduction apparatus in which rotatable masses are driven about respective axes of rotation, the centres of mass of the rotatable masses being spaced from the axes of rotation such that rotation of the masses about the axes of rotation generates vibrations.
  • vibrations can be generated which can be used to counteract unwanted vibrations, for example in diesel motors.
  • Such arrangements are disclosed in FR 2606110 , WO 88/06687 , FR 2550471 , EP 0840191 , EP 0505976 and EP 0337040 .
  • DE 3427342 discloses a hammer drill in which a wobble plate drive mounted to a shaft causes reciprocating movement of a flying mass to impart impacts to a bit of the drill.
  • the wobble plate drive has a finger engaging a piston forming part of the hammer mechanism such that rotation of a shaft to which the wobble plate is mounted causes reciprocating movement of the piston, and a countermass arranged on an opposite side of the shaft to the finger to partially counteract vibrations produced by the apparatus.
  • this drill suffers from the drawback that its vibration reducing abilities and compactness are limited.
  • GB 2256905 discloses a reciprocating saw in which first and second wobble plates reciprocatingly drive a saw blade and counterweight respectively to minimise vibrations produced by the saw.
  • this saw suffers from the drawback that the provision of a pair of wobble plates makes it difficult to construct the saw compactly.
  • US2764188 discloses a power tool according to the preamble of claim 1 in a form of a reciprocating saw and forms the closest piece of prior art.
  • Preferred embodiments of the present invention seek to overcome the above disadvantages of prior art power tools.
  • a vibration reduction mechanism 101 for use with a hammer such as the prior art demolition hammer shown in Figure 1 , comprises a pair of substantially identical gear wheels 102, 103 mounted to a common shaft 104.
  • Each of the gear wheels 102, 103 consists of a gear face having inclined gear teeth 105, and a weight 106 arranged on the periphery of the wheel 102, 103 such that the overall centre of mass of each wheel 102, 103 is spaced from the axis of rotation passing through common shaft 104.
  • the gear teeth 105 of wheels 102, 103 face each other and mesh with a conical gear 107 such that rotation of wheel 108 in the direction of arrow A in Figure 2 causes corresponding rotation, via conical gear 107, of wheel 103 in the direction of arrow B.
  • Conical gear 107 is freely rotatable in the direction of arrow C relative to a stepper motor 108, but adjustment of the relative positions of the weights 106 of wheels 102, 103 can be effected by rotation of conical gear 107 in a direction opposite to arrow C by means of stepper motor 108.
  • the lower gear wheel 103 is rigidly mounted to shaft 104, whereas the upper wheel can rotate freely on shaft 104.
  • the shaft 104 is connected to a gear mechanism driving a working member, such as a reciprocating flying mass for imparting a hammer action to the bit of the tool, such that the lower wheel 103 rotates at the same frequency as the frequency of reciprocating motion of the flying mass. Because both gear wheels 102, 103 mesh with conical gear 107, the wheels 102, 103 rotate at the same angular velocity but in opposite directions.
  • each gear wheel 102, 103 can be resolved into sinusoidal motion of the centre of mass along perpendicular axes in a plane at right angles to common shaft 104.
  • the resultant phase of the vibrations produced by the vibration reduction apparatus 101 can be adjusted to at least partially counteract vibration of the hammer housing caused by the hammer action imparted to the bit of the tool by the flying mass.
  • hammer piston 220 is driven by means of eccentric pin 212 on gear plate 202.
  • Gear plate 202 is mounted to a shaft 270 coaxially with gear plate 203, the gear plate 203 being provided with a weight 206.
  • Gear teeth 205 on gear plate 202, 203 mesh with conical gear 207 which is rotated by means of stepper motor 208.
  • the angular position of weight 206 relative to eccentric pin 212 is adjusted by rotating conical gear 207 to rotate gear plates 202, 203 relative to each other.
  • vibrations caused by movement of hammer piston 220 are counteracted by the vibrations produced by rotating gear wheel 203, the weight 206 on the periphery of which is generally diametrically opposite pin 212 on the other gear wheel 202.
  • gear wheels 302, 303 are mounted to a common shaft (not shown) and are each provided with gear teeth 305.
  • Gear wheel 302 carries an eccentric pin 312 which is used to drive a reciprocating output shaft (not shown) for driving a hammer piston similar to that shown in Figure 3 .
  • Gear wheel 303 is provided with a weight 306 on its periphery such that its centre of mass is spaced from the axis of rotation of gear wheel 303, and the wheels 302, 303 are driven independently of each other by means of drive shafts 310, 311 respectively, having respective gears 313, 314 meshing with gear teeth 305 of wheels 302, 303 respectively.
  • Hammer action is imparted to the bit of the tool by reciprocating motion of the hammer piston causing a flying mass to strike the end of a cylinder.
  • Drive shaft 310 causes rotation of eccentric pin 312, and the shaft 311 is driven such that the wheel 303 rotates at the same frequency as wheel 302, but in the opposite direction, and the phase difference between weight 306 and eccentric pin 312 is chosen such that the vibrations generated by rotation of wheel 303 counteract to the greatest possible extent the vibrations generated by the hammer action of the tool.
  • FIG. 5 in which parts common to the embodiment of Figure 4 are denoted by like reference numerals but increased by 100, discloses a vibration reduction apparatus 401 for reducing vibrations caused by reciprocation of a hammer piston 420 which in turn drives a flying mass (not shown) for generating a hammer action.
  • a counter weight 421 is provided for reciprocating motion generally in antiphase with the hammer piston 420.
  • the hammer piston 420 is connected via pivot pin 422 to crank arm 423 and the crank arm 423 is rotated about axis 424 by means of a drive shaft (not shown) connected to the hammer motor.
  • a drive arm 425 is connected to the crank arm 423 at pivot axis 426 such that rotation of crank arm 423 about axis 424 causes reciprocating motion of counterweight 421 at the same frequency as hammer piston 420 but with approximately opposite phase.
  • a gear wheel 403 has an eccentric weight 406 and is provided with external gear teeth 405 which mesh with gear 414 on drive shaft 411.
  • the drive shaft 411 can be used to rotate gear wheel 403 relative to crank arm 423 such that the angular position of the weight 406 relative to the counterweight 421 can be adjusted.
  • the phase and amplitude of the resulting vibrations can be adjusted, to take account of the fact that oscillation of the centre of mass of the hammer piston 420 is variable, depending upon the flying masses, the hardness of the surface being hammered and other factors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Transmission Devices (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Machine Tool Units (AREA)
  • Vibration Prevention Devices (AREA)

Claims (6)

  1. Outil électrique comprenant :
    un boîtier ;
    un moteur dans le boîtier adapté pour provoquer le mouvement d'au moins un premier élément de travail de l'outil ;
    un appareil de réduction de vibrations comprenant au moins une paire de masses rotatives (102, 103 ; 202, 203 ; 302, 303), la ou chaque dite paire comprenant une première et une seconde masse rotative adaptées pour tourner dans des sens mutuellement opposés autour de premier et second axes de rotation respectifs, dans lequel chacune desdites première et seconde masses rotatives a un centre de masse respectif espacé dudit axe de rotation correspondant ;
    au moins une roue dentée d'entraînement adaptée pour être entraînée par ledit moteur pour provoquer le mouvement d'au moins un dit premier élément de travail et entraîner ledit appareil ;
    dans lequel l'appareil de réduction de vibrations comprend en outre un moyen d'ajustement (108, 310, 311 ; 411) pour ajuster la phase et/ou l'amplitude de vibrations produites par ledit appareil ;
    caractérisé en ce que ledit moyen d'ajustement (108 ; 310, 311 ; 411) comprend des moyens pour faire tourner lesdites masses (102, 103 ; 202, 203 ; 302, 303) d'au moins une dite paire l'une par rapport à l'autre d'un angle prédéterminé.
  2. Outil électrique selon la revendication 1, dans lequel lesdites première et seconde masses d'au moins une dite paire comprennent des roues dentées respectives.
  3. Outil électrique selon la revendication 2, dans lequel lesdites roues dentées d'au moins une dite paire s'engrènent l'une dans l'autre.
  4. Outil électrique selon l'une quelconque des revendications 1 à 3, dans lequel les masses rotatives d'au moins une dite paire sont montées coaxialement.
  5. Outil électrique selon la revendication 1, dans lequel ledit moyen d'ajustement (108 ; 310, 311 ; 411) comprend des moyens pour faire tourner au moins une dite roue d'entée d'entraînement par rapport à au moins un dit premier élément de travail.
  6. Outil selon l'une quelconque des revendications précédentes, dans lequel le moteur est adapté pour entraîner au moins un dit premier élément de travail via une dite masse rotative (102, 103 ; 202, 203 ; 302, 303) d'au moins une dite paire.
EP09169221.0A 2003-03-21 2004-03-19 Outil électrique incorporant un appareil de réduction de vibration Expired - Lifetime EP2119536B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0306525A GB2399615B (en) 2003-03-21 2003-03-21 Vibration reduction apparatus for power tool and power tool incorporating such apparatus
GB0323885A GB0323885D0 (en) 2003-10-11 2003-10-11 Vibration reduction apparatus for power tool and power tool incorporating such apparatus
EP04721875A EP1606082B1 (fr) 2003-03-21 2004-03-19 Outil electrique incorporant un systeme limitant les vibrations

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04721875A Division EP1606082B1 (fr) 2003-03-21 2004-03-19 Outil electrique incorporant un systeme limitant les vibrations
EP04721875.5 Division 2004-03-19

Publications (3)

Publication Number Publication Date
EP2119536A2 EP2119536A2 (fr) 2009-11-18
EP2119536A3 EP2119536A3 (fr) 2012-03-07
EP2119536B1 true EP2119536B1 (fr) 2017-08-23

Family

ID=33031415

Family Applications (7)

Application Number Title Priority Date Filing Date
EP09169221.0A Expired - Lifetime EP2119536B1 (fr) 2003-03-21 2004-03-19 Outil électrique incorporant un appareil de réduction de vibration
EP08103158.5A Withdrawn EP1932627A3 (fr) 2003-03-21 2004-03-19 Appareil de réduction de vibration pour outil électrique et outil électrique incorporant un tel appareil
EP06117029.6A Expired - Lifetime EP1710052B1 (fr) 2003-03-21 2004-03-19 Outil de percussion électrique avec moyens de limitation des vibrations
EP08103157.7A Expired - Lifetime EP1932626B1 (fr) 2003-03-21 2004-03-19 Appareil de réduction de vibration pour outil électrique et outil électrique incorporant un tel appareil
EP07102225.5A Withdrawn EP1779980A3 (fr) 2003-03-21 2004-03-19 Système limitant les vibrations pour outil électrique, et outil électrique incorporant ce système
EP04721875A Expired - Lifetime EP1606082B1 (fr) 2003-03-21 2004-03-19 Outil electrique incorporant un systeme limitant les vibrations
EP07109072A Expired - Lifetime EP1818141B1 (fr) 2003-03-21 2004-03-19 Système limitant les vibrations pour outil électrique, et outil électrique incorporant ce système

Family Applications After (6)

Application Number Title Priority Date Filing Date
EP08103158.5A Withdrawn EP1932627A3 (fr) 2003-03-21 2004-03-19 Appareil de réduction de vibration pour outil électrique et outil électrique incorporant un tel appareil
EP06117029.6A Expired - Lifetime EP1710052B1 (fr) 2003-03-21 2004-03-19 Outil de percussion électrique avec moyens de limitation des vibrations
EP08103157.7A Expired - Lifetime EP1932626B1 (fr) 2003-03-21 2004-03-19 Appareil de réduction de vibration pour outil électrique et outil électrique incorporant un tel appareil
EP07102225.5A Withdrawn EP1779980A3 (fr) 2003-03-21 2004-03-19 Système limitant les vibrations pour outil électrique, et outil électrique incorporant ce système
EP04721875A Expired - Lifetime EP1606082B1 (fr) 2003-03-21 2004-03-19 Outil electrique incorporant un systeme limitant les vibrations
EP07109072A Expired - Lifetime EP1818141B1 (fr) 2003-03-21 2004-03-19 Système limitant les vibrations pour outil électrique, et outil électrique incorporant ce système

Country Status (9)

Country Link
US (4) US7331407B2 (fr)
EP (7) EP2119536B1 (fr)
JP (7) JP4662924B2 (fr)
CN (1) CN101898352B (fr)
AT (2) ATE467487T1 (fr)
AU (2) AU2004222098B2 (fr)
DE (2) DE202004021825U1 (fr)
DK (1) DK1818141T3 (fr)
WO (1) WO2004082897A1 (fr)

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US11453093B2 (en) 2019-06-24 2022-09-27 Black & Decker Inc. Reciprocating tool having planetary gear assembly and counterweighting assembly
US11839964B2 (en) 2022-03-09 2023-12-12 Black & Decker Inc. Counterbalancing mechanism and power tool having same
US11958121B2 (en) 2022-03-04 2024-04-16 Black & Decker Inc. Reciprocating tool having orbit function

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EP1779979B1 (fr) * 2004-04-30 2018-02-21 Makita Corporation Outil de travail
JP4742613B2 (ja) * 2005-02-24 2011-08-10 マックス株式会社 ドリル工具
US8261851B2 (en) 2005-04-11 2012-09-11 Makita Corporation Electric hammer
EP1870209B1 (fr) * 2005-04-11 2016-12-21 Makita Corporation Marteau electrique
DE102005021734A1 (de) * 2005-05-11 2006-11-16 Robert Bosch Gmbh Elektrowerkzeugmaschine
EP1963053B1 (fr) * 2005-12-20 2012-02-01 Dentatus AB Outil electroportatif amorti en vibration
JP2007175839A (ja) * 2005-12-28 2007-07-12 Hitachi Koki Co Ltd 打撃工具
JP5041575B2 (ja) * 2006-03-07 2012-10-03 日立工機株式会社 打撃工具
DE102006000279A1 (de) * 2006-06-08 2007-12-13 Hilti Ag Handwerkzeugmaschine mit kurbelgetriebenem Luftfederschlagwerk
US20080006419A1 (en) * 2006-07-01 2008-01-10 Black & Decker Inc. Tool holder connector for powered hammer
JP2008012661A (ja) 2006-07-01 2008-01-24 Black & Decker Inc ハンマードリル用のビートピース磨耗表示器
US7401661B2 (en) * 2006-07-01 2008-07-22 Black & Decker Inc. Lubricant pump for powered hammer
EP1872913B1 (fr) * 2006-07-01 2015-08-19 Black & Decker, Inc. Porte-outil pour un marteau-piqueur
US7413026B2 (en) * 2006-07-01 2008-08-19 Black & Decker Inc. Lubricant system for powered hammer
AU2007202968A1 (en) * 2006-07-01 2008-01-17 Black & Decker, Inc. A pavement breaker
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AU2004222098A1 (en) 2004-09-30
EP1932627A3 (fr) 2014-08-13
JP2009291938A (ja) 2009-12-17

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